I think we should just start pitching him every game we are down 2 runs in the 8th or 9th inning. In those situations the Nats would be <15% to win, at best. Baseball fans think comebacks happen more often than they do, and we should just let him figure it out or embarrass himself in games we're very likely to lose regardless.
A 5-run lead is a high leverage situation for him right now.
